Browsing Programs, Centers, and Institutes by Department "Physics"
Now showing items 1-20 of 24
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(1977)Ferroelectric crystals show an unexpected T³ᐟ² term in the specific heat. An experiment is discussed, as well as background information on ferroelectrics and specific heats, in which the thermal expansion coefficient is ...
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(1990)A test run of a new 4π neutron detector has been performed, studying the collisions of 30 Mev/u ¹⁴N with ¹⁰⁹Ag and ⁶⁰Ni. Average neutron multiplicities of the two reactions were determined after correction for background ...
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(1990)The purpose of this paper is to report on tests of properties of selected fiber materials and scintillation oils for their use in a liquid scintillating fiber calorimeter at the Superconducting Super Collider (SSC). The ...
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(1995)GaSb/Sb heterostructures hold the promise of being very interesting materials. Properties introduced by the growth of the semiconductor and semi-metal together may prove to be very useful in various electronic devices. ...
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(1989)Computer simulation of halos caused by ice crystal scattering provides a simple and accurate qualitative measure of the intensity distribution. To correctly calculate intensities, the effects of polarization must be ...
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(1987)This paper examines the feasibility of using a cryogenic optical fiber link for an irradiation study of the quantum Hall effect (QHE). Commercially available GaAs₁₋ₓPₓ light-emitting diodes (LED's) were studied at temperatures ...
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(1990)The electronic transport properties of ternary Al-based amorphous alloys are studied. A description of the evaporation system and measuring cryostat made for the project is given. Preliminary Hall Effect, resistivity, and ...
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(1983)Angular distributions of fission fragments for the reaction of ¹⁰B + Au at bombarding energies of 130, 180, 225, and 320 MeV were obtained. Integration of these cross-sections was carried out, but problems with the first ...
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(1977)Measurement of a current dependent noise spectrum for a small volume of electrolyte is reported. The noise is greater in magnitude and has a frequency dependence different from that predicted by thermodynamic theory. The ...
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(1986)Velocity spectra of ¹²C-induced reactions at 300 MeV were obtained using a variety of targets, i.e. Ti , Ni, Ag, Sm, and Au. From these distributions, along with statistical model calculations, the cross sections for fusion ...
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(1994)The objective of this project is to determine the charge state distributions that result when heavy, highly energetic Xe ions are passed through matter. Specifically, the interaction of 8 MeV/μXe²¹⁺ with carbon foils of ...
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(1991)The primary purpose of this work was to study the charge state distributions and ionization cross sections for fast, highly charged, heavy ions in collision with noble gas atoms. Fission fragments from the spontaneous ...
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(1983)The Kα x-ray spectra of sodium compounds produced by bombardment with 5.2 MeV He⁺ and 20 MeV C³⁺ were measured using a curved crystal spectrometer. The average probability of electron transfer to the L shell of sodium was ...
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(1982)The mass of ¹⁶Ne has been measured by the reaction ²⁰Ne(⁴He, ⁸He) ¹⁶Ne at a beam energy of 129 MeV. The target gas of isotopically enriched ²⁰Ne (>99.5% ²⁰Ne) was contained in a gas cell with Havar windows. Reaction products ...
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(1989)The goal of this project is to measure the forward scattered light from a small sphere at angles down to zero degrees. By cancelling the unscattered illumination beam with a Mach-Zehnder interferometer, it was possible to ...
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(1989)This paper discusses the experimentation and results of a Nd:YAG laser optical trapping experiment. The samples used were 10 micrometer polystyrene spheres and living chloroplasts. A minimum power level of 150 milliwatts ...
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(1979)Polarization measurements of light emitted near 3889 Å from fast He atoms, resulting from near grazing collisions with an aluminum target by incident 1--9 keV He ⁺ ions are described. The polarization results were analyzed ...
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(1981)A method for measuring the vector polarization of collision-induced radiation is described and implemented. Studied in this research are the polarized de-excitations at 3889 Å characteristic of the 2³S₁ - 3³P₂,₁,₀ transitions ...
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(1998)The following explores the first systematic research conducted at Texas A&M University studying preparation techniques of the bulk La₁₋ₓCaₓMnO3±δ colossal magnetoresistance (CMR) family. Three sample sets of bulk La₁₋ₓCaₓMnO3±δ ...
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(1984)Singles and coincidence energy spectra were obtained for ¹⁴N projectiles at 265 MeV incident on a ¹²C target. Model calculations were done for this system using the computer program LILITA and comparisons were made between ...